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  1. #include <stdio.h>
  2. //正の奇数nを引数とし，以下の正の奇数の和を求める関数
  3. int rec(int n){
  4.  
  5.     if (n == 1){
  6.         return 1;
  7.     }
  8.     else{
  9.         return rec(n-2)+n;
  10.     }
  11. }
  12. int main(void) {
  13.     int n =5;
  14.     printf("%d以下の正の奇数の和は%d\n", n, rec(n));
  15. 	return 0;
  16. }
Success #stdin #stdout 0s 5320KB
comments (?)
stdin 
Standard input is empty
stdout 
5以下の正の奇数の和は9
https://ideone.com/skBRxk
language:
C (gcc 8.3)
created:
6 days ago
visibility:
public

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